Dosimetric parameters of palladium-103 brachytherapy source with Monte Carlo simulation.

Before clinical application of a new source, the dosimetric parameters of the source should be accurately determined. This work is dedicated to the Monte Carlo method to calculate dosimetric parameters as recommended by the American Association of Physicists in Medicine (AAPM) TG-43 guidelines for model ADVANTAGE™ palladium-103 source and, through comparison with data from another published report for the same source, presents a suggested dataset for clinical applications. From these calculations, tables are presented for the radial dose function and the anisotropy function of palladium-103 brachytherapy source. The dose rate constants are found to be 0.671 (cGyh-1U-1) in liquid water and 0.673 (cGyh-1U-1) in Solid Water™. And the anisotropy constants in liquid water and Solid Water™ are found to be 0.864 and 0.865 respectively. Comparison with the previous study shows that our results of dosimetric parameters are in good agreement with those measured and calculated by Meigooni et al. (2006) both in Water and Solid Water™. [ABSTRACT FROM AUTHOR]